Oil-burner.



A. R. KUNKEL.

OIL BURNER. APPLICATION 11,111) MAR. 16, 1911.

Patented Jan. 30, 1912.

2 SHEETS-SHBET 1.

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OIL BURNER.

APPLICATION FILED MARJG, 1911.

Patented Jan. 30, 1912.

2 SHEETS-SHEET 2.

UNTTEE TATE PATENT. @FFTQE.

ALBERT R. KUNKEL, OF PAiESTINE, TEXAS.

OIL-BURNER.

To all whom it may concern Be it known that I, ALBERT R. KUNKEL, acitizen of the United States, residing at Palestine, county of Anderson,State of Texas, have invented certain new and useful Improvements inOil-Burners, of which the following is a specification.

This invention relates to lneans for burning oils of various kinds andis an improvement on the apparatus covered by my Patent No. 976,268granted November 22, 1910.

It has been my object to produce a device which will thoroughly andcompletely mix the oil and air and so distribute it as to secure aneffective and even combustion of the uixture, and it has also been myobject to make the structure of the apparatus simple and in convenientform.

The novel features of the invention will be apparent from the followingdescription taken in connection with the accompanying drawing.

In the drawing: Figure 1 is a vertical section showing my invention, anda portion of the chamber in which it is used; Fig. 2 is a front view ofmy splash-plate; Fig. 3 is a horizontal section through the proper; andFig. at is an end view of the burner.

In the drawings 1 represents the door of the combustion chamber of afurnace or stove, and 2 represents the grate bars or other support formy splash-plate. A burner 3 is supported from a bracket 41: carried bythe door and it has a nozzle dis charging into the combustion chamberthrough an opening in the door, the nozzle preferably projecting withinthe chamber. It will be understood, however, that the burner may besupported in any suitable way. In front of the burner and in linetherewith I place the splash-plate 5 which is concave in cross sectionand which is elongated as shown in Fig. 2. The splash-plate ispreferably curved on substantially the arc of a circle and extends forabout half of a circumference, being placed in the combustion chamberwith its edges at an angle to the vertical of about 30 so that its upperportion overhangs the lower portion. The nozzle discharges into theconcave portion, and thus the flame from the burner is spread not onlylongitudinally of the plate, but travels upward and to some extentclownward. The upper portion of the plate is provided with a series oflongitudinal slots Specification of Letters Patent.

Application filed March 16, 1911.

burner Patented J an. 30, 1912.

Serial No. 614,881.

6 which permit the escape of the flame from within the concave portionand properly distribute it, these slots being symmetrically arranged soas toevenly distribute the flame. The portion of the splash-platedirectly in line with the burner is made solid without openings. Avertical supporting extension 7 carries the splash-plate from its loweredge, and this extension is provided with the longitudinal slots 8 oneach side of the central line of the burner discharge. A supporting base9 carries the extension 7 and rests upon the grate bars or othersupport, and it will be observed that this base has a flat horizontalupper portion on which is formed the splash-pan or receptacle 10immediately in front of the extension 7, the purpose of this pan beingto catch any oil which may strike the plate and drip down. The oil socaught will be vaporized and burned through the heat of the flame. Theupper edge of the splash-plate immediately above the line of dischargeof the burner has a reversely curved upwardly extending guard flange 11concave in longitudinal section as shown in Figs. 1 and 2- which servesto properly guide the jet of flame. This flange has the longitudinalslot 12 for the passage of flame.

The burner proper embodies a casing 13 preferably cast in one piece andhaving the four radiating passage-ways as shown. The tubular part 14containing one of these passage-ways has screwed into its end the nozzle15 for projecting a jet of air into the passage-ways which constitute amixing chamber. An oil inlet 16 is in advance of the air inlet nozzle,whereby the oil will be taken up by the jet of air and thoroughly mixed.A valve casing 17 is secured to the air nozzle and is provided with thecontrol valve 18. The end of the mixing chamber opposite to the airinlet nozzle is closed by a screw plug 19, but it is clear that thisplug may be removed so as to give access to the interior of the chamber.The nozzle 20 of the burner is screwed into the casing 13, and it isvprovided with a small outlet 21 having a valve seat immediately back ofit. A tapering valve 22 fits against this seat and has a stem 23extending out through the opposite side of the casing so that it may becontrolled by hand. Immediately back of the valve the stem is cut awayat 24 so as to leave a surrounding groove or chamber, and I have foundthat this arrangement gives a better and more effective mixture of theair and oil as it is discharged from the nozzle. The tapering valvefitting into the tapering valve seat will, automatically maintain thefluid-tight connection since the valve will grind against the valve seatmalnng a close fit. Surrounding the small outlet 21 and extendingforwardly therefrom there is a flaring mixing chamber 25 which serves tomore effectively mix the air and oil and which will prevent anyunvaporized oil from dropping down from the nozzle. The oil will betaken up in this extension and carried for ward by the blast.

It will be observed that my burner includes a means for thoroughlymixing the oil and air and for discharging the mixture into thecombustion chamber, and that my splash-plate used in front of the burnerproperly distributes the mixture and causes complete combustion owing tothe fact that the plate becomes heated and prevents the escape of any ofthe oil discharged by the burner. The structure of the splash-platefurthermore properly distributes the flame laterally as well asvertically within the combustion chamber so as to get a uniform effectin various parts of the furnace.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. In a device of the class described the combination with a burner, ofan elongated splash-plate semicircular in cross section facing saidburner with its upper portion overhanging the lower portion, and theupper portion being provided with symmetrically arranged flame openings.

2. In a device of the class described the combination with a burner, ofan elongated splasli-plate semi-circular in cross section facing saidburner with its upper portion overhanging the lower portion, the upperportion being provided with symmetrically arranged flame openings, and avertical supporting extension from the lower portion provided with flameopenings.

3. In a device of the class described the combination with a burner, ofan elongated splash-plate semi-circular in cross section facing saidburner with its upper portion overhanging the lower portion the upperportion being provided with symmetrically arranged flame openings, avertical supporting extension from the lower portion provided with flameopenings, and a base carrying said extension and provided with an opentopped oil receptacle along said extension.

4. In a device of the class described the combination with a burner, ofan elongated splash-plate semi-circular in cross section facing saidburner with its upper port-ion o 'erhanging the lower portion, the upperportion being provided with symmetrically arranged flame openings, and areversely curved upwardly extending guard flange concave in longitudinalsection centrally above the line of discharge of said burner and havinga flame opening therein.

In testimony whereof I ailix my signature in presence of two witnesses.

ALBERT R. KUNKEL.

Witnesses:

F. E. BARNES, J. B. HAMILTOA'.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

